* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  font-size: 100px;
}
p {
  margin: 0;
  padding: 0;
}
body {
  max-width: 640px;
  margin: 0 auto;
  display: block;
  background: #fff;
  position: relative;
}
article{
  margin-top: 0.97rem;
}
a {
  cursor: pointer;
  text-decoration: none;
}
img {
  display: block;
  width: 100%;
}
.clearfix:after,
.clearfix:before {
  display: block;
  content: " ";
  clear: both;
  zoom: 1;
}
ul li{
  list-style: none;
}